Lazard: Solar, wind close to reaching affordability of existing coal, nuclear

Facebook
Twitter
LinkedIn
Reddit
Email

Solar and wind have seen such major cost-efficiency gains within a single decade they are close to outcompeting already operational coal and nuclear plants, according to Lazard.

On Thursday, the consultancy released new analysis charting the dramatic slide in solar and wind levelised costs of energy (LCOE) between 2009 and 2019, taking both green energy technologies to a point where they make more financial sense than non-renewable incumbents.

This article requires Premium SubscriptionBasic (FREE) Subscription

Unlock unlimited access for 12 whole months of distinctive global analysis

Photovoltaics International is now included.

  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Unlimited digital access to the PV Tech Power journal catalogue
  • Unlimited digital access to the Photovoltaics International journal catalogue
  • Access to more than 1,000 technical papers
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

Unsubsidised utility-scale solar LCOEs have, the figures show, plummeted between 2009 (US$323-394) and 2019 (US$36-44). For unsubsidised wind, LCOE improvements have been similarly decisive, taking the industry from US$101-169 in 2019 to US$28-54 in 2019.

According to Lazard, green energy cost-efficiency gains may have slowed in recent years, particularly for onshore wind. However, they still have made most new-builds cheaper than their coal, gas and nuclear counterparts, the firm noted, using the following figures to underpin the premise:

LCOE comparison – Unsubsidised analysis (Source: Lazard)

Gas peaking Nuclear Coal Gas combined cycle
US$150-199 US$118-192 US$66-152 US$44-68
Wind Solar PV – Thin-film utility-scale Solar PV – Rooftop C&I Solar PV – Rooftop residential
US$28-54 US$32-42 US$75-154 US$151-242

For solar and wind, Lazard continued, the progress with economics has reached such heights both technologies are also closing in on existing, not just new, non-renewable plants.

Where running existing coal and nuclear plants carries today marginal costs of US$26-41 and US$27-31, building unsubsidised thin-film utility-scale PV and onshore wind instead would carry LCOEs of US$32-42 and US$28-54. If either PV or wind were subsidised, they would effectively already be cheaper, Lazard said.

Cheaper doesn’t cut it if storage is absent

Lazard’s latest update evidences solar’s cost-efficiency momentum reaches across the world.

Whether cheaper systems such as crystalline utility-scale solar or pricier counterparts such as C&I rooftops, PV power now outcompetes gas peakers in the US, Australia, Brazil, India, South Africa and Japan, the firm’s estimations show.

However, Lazard noted, competitiveness is only one piece of the puzzle. “Without storage … these [solar and wind] resources lack the dispatch characteristics, and associated benefits, of such conventional technologies,” the consultancy pointed out.

The necessary alliances with storage systems will be helped along by the fact that economics are too improving for the latter, based on separate analysis by Lazard. Lithium-ion systems in particular have witnessed faster cost drops than alternative storage technologies, the firm said on Thursday.

“Lithium-ion, particularly for shorter duration applications, remains the least expensive of energy storage technologies analyzed and continues to decrease in cost, thanks to improving efficiencies and a maturing supply chain,” Lazard pointed out.

The firm’s LCOS update shows that – as in earlier years – cost gaps remain apparent across segments. For instance, front-of-meter LCOS differ between standalone wholesale (US$165-US$325) and solar-plus-storage wholesale (US$102-139).

The economical soundness of solar-plus-storage extends to the behind-the-meter segment, with hybrid C&I systems (US$223-384) outcompeting their standalone peers (US$485-1,042). As Lazard noted, residential hybrids face a more uphill climb, with LCOS in the US$457-663 range.

See here to browse Lazard's Levelized Cost of Energy Analysis (LCOE 13.0) and Levelized Cost of Storage Analysis (LCOS 5.0) in full

The prospects and challenges of solar's new era in Europe and beyond will take centre stage at Solar Media's Solar Finance & Investment Europe (London, 5-6 February) and Large Scale Solar Europe 2020 (Lisbon, on 31 March-1 April 2020).

Read Next

July 4, 2025
Germany’s latest innovation tender has awarded 488MW of co-located capacity, with all the projects being solar PV tied with energy storage.
July 4, 2025
Australian retailer AGL Energy has confirmed its acquisition of South Australia’s Virtual Power Plant (SAVPP) from Tesla.
July 3, 2025
Malaysian engineering and infrastructure giant Gamuda has expanded its presence in the Australian renewables sector by partnering with Tasmanian landowners to build a 1.2GW portfolio, which includes solar PV.
July 2, 2025
The US Senate has narrowly passed – with a 51-50 vote and with vice-president JD Vance breaking the tie – the reconciliation bill yesterday (1 July) without the solar and wind excise tax.
July 1, 2025
Independent power producer (IPP) Arevon Energy has closed a US$600 million credit facility to support its solar PV and energy storage portfolio in the US.
June 30, 2025
Voting on the US tax reconciliation bill is expected to begin in the Senate today, following a draft published on Friday that hit clean energy tax credits hard.

Subscribe to Newsletter

Upcoming Events

Media Partners, Solar Media Events
September 2, 2025
Mexico City, Mexico
Solar Media Events
September 16, 2025
Athens, Greece
Solar Media Events
September 22, 2025
Bilbao, Spain
Solar Media Events
September 30, 2025
Seattle, USA
Solar Media Events
October 1, 2025
London, UK